What does concrete C 10 mean? I want a specific answer! What does C stand for?

Concrete C 10 is a strength grade of concrete. The letter C is the first letter of the English word "concrete", which means concrete; The number 10 refers to the standard cubic compressive strength of concrete 10N/mm 2.

C 10 can only be used for foundation cushion. According to the new Code for Design of Concrete Structures, the strength grade of concrete is C 15~C80, and the intermediate grade difference is 5 10N/mm 2, *** 14. The minimum strength of reinforced concrete member concrete should not be lower than C 15. The specification shows that c 65438+ can be used as supplementary foundation cushion.

Grade C7.5-C15: used for cushion, foundation, floor slab and concrete structure and mass concrete with less stress.

C 15-C25 grade: used for ordinary reinforced concrete (beams, slabs, roof trusses, etc. );

C20-C30 grade: used for long-span structures and prefabricated members;

& gtC30 pole: used for prestressed reinforced concrete and special components.